ATI RN
ATI Pharmacology Practice A 2023 Questions
Question 1 of 5
In repeated (chronic or multiple) dosing:
Correct Answer: A
Rationale: If the dosing interval exceeds the drug's half-life significantly, the body eliminates the drug fully before the next dose, minimizing accumulation.
Question 2 of 5
A mother brings her unconscious 14-year-old son to the emergency department. He was found in his bedroom by his mother appearing agitated and sweaty. He complains of a feeling of ants crawling under his skin and a dry mouth. The mother suspects that he has been abusing his brother's prescription ADHD medicine, showing an empty pill bottle. What should he be given now?
Correct Answer: C
Rationale: ADHD stimulant (e.g., amphetamine) overdose (formication, dry mouth) lacks a specific antidote, but flumazenil -is listed, likely a typo for a benzo to calm agitation. Ammonium chloride , epinephrine , pilocarpine , and theophylline (E) don't fit. Benzos would address symptoms.
Question 3 of 5
the antidote for Warfarin is?
Correct Answer: B
Rationale: Warfarin is an oral anticoagulant that works by inhibiting the synthesis of vitamin K-dependent clotting factors in the liver. Therefore, the antidote for Warfarin overdose or to reverse its effects is vitamin K. Vitamin K helps in replenishing the depleted vitamin K-dependent clotting factors, allowing the blood to clot normally again. Administering vitamin K helps in reversing the anticoagulant effects of Warfarin, preventing excessive bleeding or hemorrhage.
Question 4 of 5
A client is prescribed clonidine (Catapres) for hypertension. Which statement by the client indicates effective teaching?
Correct Answer: C
Rationale: Clonidine, an alpha-2 agonist, lowers BP but risks rebound hypertension if stopped abruptly. Tapering off shows understanding, preventing this danger. Stopping if normal or extra doses risk instability. Chewing isn't advised'oral absorption suffices. Tapering aligns with clonidine's withdrawal risk, critical in hypertension management, making C the statement of effective teaching.
Question 5 of 5
A 9-year-old boy is sent for neurologic evaluation because of episodes of apparent inattention. Over the past year, the child has experienced episodes during which he develops a blank look on his face and his eyes blink for 15 seconds. He immediately resumes his previous activity. Which one the following best describes this patient's seizures?
Correct Answer: D
Rationale: Absence seizures, typical in childhood, feature brief (10-20 second) lapses in awareness with staring and eye blinking, followed by immediate resumption of activity, as described. Simple partial seizures preserve consciousness with focal symptoms (e.g., twitching). Complex partial seizures impair awareness longer, with automatisms. Tonic-clonic seizures involve convulsions. Myoclonic seizures cause jerks without staring. The short duration, blank look, and rapid recovery align with absence seizures' EEG pattern (3 Hz spike-and-wave), distinguishing it here.